| 2025 | American Friends of Herculaneum Inc. | 990EZ | President | 2 | $0 | $0 | View return |
| 2024 | The Roger I & Ruth B Macfarlane Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2024 | American Friends of Herculaneum Inc. | 990EZ | Director | 2 | $0 | $0 | View return |
| 2023 | American Friends of Herculaneum Inc. | 990EZ | Director | 2 | $0 | $0 | View return |
| 2023 | The Roger I & Ruth B Macfarlane Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2022 | American Friends of Herculaneum Inc. | 990EZ | Director | 4 | $0 | $0 | View return |
| 2022 | The Roger I & Ruth B Macfarlane Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2022 | The Classical Association of the Middle West and South Inc | 990 | Strat Planni | 1 | $0 | $0 | View return |
| 2021 | The Roger I & Ruth B Macfarlane Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2021 | American Friends of Herculaneum Inc. | 990EZ | Director | 2 | $0 | $0 | View return |
| 2021 | The Classical Association of the Middle West and South Inc | 990 | Strat Planni | 1 | $0 | $0 | View return |
| 2020 | The Roger I & Ruth B Macfarlane Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2020 | American Friends of Herculaneum Inc. | 990EZ | Director | 2 | $0 | $0 | View return |
| 2020 | The Classical Association of the Middle West and South Inc | 990 | Membership C | 1 | $0 | $0 | View return |
| 2019 | The Roger I & Ruth B Macfarlane Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2019 | American Friends of Herculaneum Inc. | 990EZ | Director | 1 | $0 | $0 | View return |
| 2019 | The Classical Association of the Middle West and South Inc | 990 | Membership C | 1 | $0 | $0 | View return |
| 2018 | American Friends of Herculaneum Inc. | 990EZ | Director | 2 | $0 | $0 | View return |
| 2018 | The Roger I & Ruth B Macfarlane Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2018 | The Classical Association of the Middle West and South Inc | 990 | Membership C | 1 | $0 | $0 | View return |
| 2017 | The Roger I & Ruth B Macfarlane Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2017 | American Friends of Herculaneum Inc. | 990EZ | Director | 3 | $0 | $0 | View return |
| 2017 | American Society of Papyrologists | 990 | Director At Large | 0.5 | $0 | $0 | View return |
| 2017 | The Classical Association of the Middle West and South Inc | 990 | Membership C | 1 | $0 | $0 | View return |
| 2016 | The Roger I & Ruth B Macfarlane Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2016 | American Friends of Herculaneum Inc. | 990EZ | Director | 1 | $0 | $0 | View return |
| 2016 | American Society of Papyrologists | 990 | Director At Large | 0.5 | $0 | $0 | View return |
| 2016 | The Classical Association of the Middle West and South Inc | 990 | Membership C | 1 | $0 | $0 | View return |
| 2015 | American Society of Papyrologists | 990 | Director At Large | 0.5 | $0 | $0 | View return |
| 2015 | The Roger I & Ruth B Macfarlane Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2015 | The Classical Association of the Middle West and South Inc | 990 | Membership C | 1 | $0 | $0 | View return |
| 2014 | American Society of Papyrologists | 990 | Director At Large | 0 | $0 | $0 | View return |
| 2014 | The Roger I & Ruth B Macfarlane Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |
| 2013 | American Society of Papyrologists | 990 | Director At Large | 0 | $0 | $0 | View return |
| 2013 | The Roger I & Ruth B Macfarlane Foundation | 990PF | Trustee | 1 | $0 | $0 | View return |